Dynamic monitoring system and method for moisture content of sand of concrete mixing plant

The invention discloses a dynamic monitoring system and method for the moisture content of sand of a concrete mixing plant. The system comprises an acquisition device, wherein the acquisition device is connected with a front host, the front host is connected with a server, and the server is connected with a client; the acquisition device comprises a sand dielectric property sensing module and a test probe, the sand dielectric property sensing module is connected with the test probe; the front host downloads data from the server and sends an acquisition instruction to the acquisition device, and the front host receives and stores the data acquired by the acquisition device and uploads the data to the server regularly; the client accesses the server and is used for carrying out basic data setting and information query on the monitoring system; the server is used for storing the basic data of the monitoring system and the data uploaded by the front host and carrying out operation processing on the data; and the